Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters
airworthiness · Rule · Final rule. · Published 2019-04-02 · Effective 2019-05-07 · 84 FR 12486
Document
Document number
2019-06022
Federal Register citation
84 FR 12486
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Airbus
Publication date
2019-04-02
Effective date
2019-05-07
FAA docket
Docket No. FAA-2017-1085
Abstract
We are adopting a new airworthiness directive (AD) for Airbus Helicopters Deutschland GmbH (Airbus Helicopters) Model MBB-BK 117 A-1, MBB-BK 117A-3, MBB-BK 117 A-4, MBB-BK 117 B-1, MBB-BK 117 B-2, MBB-BK 117 C-1, and MBB-BK 117 C-2 helicopters. This AD requires repetitive inspections of the tail rotor (T/R) gearbox housing. This AD was prompted by a report that a crack was found in a T/R gearbox housing. The actions of this AD are intended to correct an unsafe condition on these products.